Career
He was selected 19th overall in the 2011 National Hockey League Entry Draft by the Oilers. Whilst playing professionally in the Swedish Hockey League (SHL), Klefbom was signed by the Edmonton Oilers to a three-year contract on June 12, 2012. During the 2013-2014 season, his first in North America, Klefbom was recalled from Edmonton"s American Hockey League (AHL) affiliate, the Oklahoma City Barons, to the National Hockey League to make his debut on March 11, 2014, against the Minnesota Wild, where he recorded one assist in a 4–3 shootout victory.
On March 28, Klefbom scored his first career National Hockey League goal against Anaheim Ducks goaltender Jonas Hiller in a 4–3 overtime victory.
On September 19th. 2015, Klefbom signed a 7 year, 29.2 million dollar contract extension with the Edmonton Oilers.
